friendica-addons/invidious/invidious.php

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<?php
/*
* Name: invidious
* Description: Replaces links to youtube.com to an invidious instance in all displays of postings on a node.
* Version: 0.3
* Author: Matthias Ebers <https://loma.ml/profile/feb>
* Author: Michael Vogel <https://pirati.ca/profile/heluecht>
*
*/
use Friendica\Core\Hook;
use Friendica\Core\Renderer;
use Friendica\DI;
CONST INVIDIOUS_DEFAULT = 'https://invidio.us';
function invidious_install()
{
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Hook::register('prepare_body_final', __FILE__, 'invidious_render');
Hook::register('addon_settings', __FILE__, 'invidious_settings');
Hook::register('addon_settings_post', __FILE__, 'invidious_settings_post');
}
/* Handle the send data from the admin settings
*/
function invidious_addon_admin_post()
{
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DI::config()->set('invidious', 'server', trim($_POST['invidiousserver'], " \n\r\t\v\x00/"));
}
/* Hook into the admin settings to let the admin choose an
* invidious server to use for the replacement.
*/
function invidious_addon_admin(string &$o)
{
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$invidiousserver = DI::config()->get('invidious', 'server', INVIDIOUS_DEFAULT);
$t = Renderer::getMarkupTemplate('admin.tpl', 'addon/invidious/');
$o = Renderer::replaceMacros($t, [
'$settingdescription' => DI::l10n()->t('Which Invidious server shall be used for the replacements in the post bodies? Use the URL with servername and protocol. See %s for a list of available public Invidious servers.', 'https://redirect.invidious.io'),
'$invidiousserver' => ['invidiousserver', DI::l10n()->t('Invidious server'), $invidiousserver, DI::l10n()->t('See %s for a list of available Invidious servers.', '<a href="https://api.invidious.io/">https://api.invidious.io/</a>')],
'$submit' => DI::l10n()->t('Save Settings'),
]);
}
function invidious_settings(array &$data)
{
if (!DI::userSession()->getLocalUserId()) {
return;
}
$enabled = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'invidious', 'enabled');
$server = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'invidious', 'server', DI::config()->get('invidious', 'server', INVIDIOUS_DEFAULT));
$t = Renderer::getMarkupTemplate('settings.tpl', 'addon/invidious/');
$html = Renderer::replaceMacros($t, [
'$enabled' => ['enabled', DI::l10n()->t('Replace Youtube links with links to an Invidious server'), $enabled, DI::l10n()->t('If enabled, Youtube links are replaced with the links to the specified Invidious server.')],
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'$server' => ['server', DI::l10n()->t('Invidious server'), $server, DI::l10n()->t('See %s for a list of available Invidious servers.', '<a href="https://api.invidious.io/">https://api.invidious.io/</a>')],
]);
$data = [
'addon' => 'invidious',
'title' => DI::l10n()->t('Invidious Settings'),
'html' => $html,
];
}
function invidious_settings_post(array &$b)
{
if (!DI::userSession()->getLocalUserId() || empty($_POST['invidious-submit'])) {
return;
}
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DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'invidious', 'enabled', (bool)$_POST['enabled']);
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$server = trim($_POST['server'], " \n\r\t\v\x00/");
if ($server != DI::config()->get('invidious', 'server', INVIDIOUS_DEFAULT) && !empty($server)) {
DI::pConfig()->set(DI::userSession()->getLocalUserId(), 'invidious', 'server', $server);
} else {
DI::pConfig()->delete(DI::userSession()->getLocalUserId(), 'invidious', 'server');
}
}
/*
* replace "youtube.com" with the chosen Invidious instance
*/
function invidious_render(array &$b)
{
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if (!DI::userSession()->getLocalUserId() || !DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'invidious', 'enabled')) {
return;
}
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$original = $b['html'];
$server = DI::pConfig()->get(DI::userSession()->getLocalUserId(), 'invidious', 'server', DI::config()->get('invidious', 'server', INVIDIOUS_DEFAULT));
$b['html'] = preg_replace("/https?:\/\/www.youtube.com\/watch\?v\=(.*?)/ism", $server . '/watch?v=$1', $b['html']);
$b['html'] = preg_replace("/https?:\/\/www.youtube.com\/embed\/(.*?)/ism", $server . '/embed/$1', $b['html']);
$b['html'] = preg_replace("/https?:\/\/www.youtube.com\/shorts\/(.*?)/ism", $server . '/shorts/$1', $b['html']);
$b['html'] = preg_replace("/https?:\/\/youtu.be\/(.*?)/ism", $server . '/watch?v=$1', $b['html']);
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if ($original != $b['html']) {
$b['html'] .= '<hr><p><small>' . DI::l10n()->t('(Invidious addon enabled: YouTube links via %s)', $server) . '</small></p>';
}
}